--- service: i.root-servers.net start-period: '2016-05-13T00:00:00Z' end-period: '2016-05-13T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 8474933157 dns-udp-queries-received-ipv6: 481834597 dns-tcp-queries-received-ipv4: 28604489 dns-tcp-queries-received-ipv6: 948962 dns-udp-responses-sent-ipv4: 8335444363 dns-udp-responses-sent-ipv6: 489471398 dns-tcp-responses-sent-ipv4: 28338302 dns-tcp-responses-sent-ipv6: 955667